Hello to all! I apologize in advance, for the following could be too simple, but I can't figure it out. I configured a vps using centos 8, all is working fine but I'm not able to send email from this server. I tried $ telnet smtp.mailtrap.io 25 but it doesn't work yet $ telnet www.google.ca 80 does work and particularly $ telnet smtp.mailtrap.io 2525 does work too. I temporarily disabled the firewall, and selinux, but no luck. Can anyone provide any pointers? Thanks in advance, -- Victor PS: I'm sorry if there were English spelling errors.